Oil-burner.



E. L. ROBERTSON.

OIL BURNER.

APPLICATION man lam/31.1918.

Patented Apr. 15,1919.

2 SHEETS-SHEET I.

E. L. ROBERTSON.

OIL BURNER.

APPLICATION FILED MAY3I. I918.

' Pate tedfA r. 15,1919.

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

EDWIN L. ROBERTSON, QFNEW YORK, N. Y.

OIL-BURNER To all whom it may concern:

Be it known that I, EDWIN L. ROBERTSON,

a citizen of the United States, residing at.

certain new and useful Improvements in Oil-Burners, of which the following, taken in connection with the accompanying drawings, is a specification.

The invention relates to oil burners for stoves, furnaces and similar uses; and the object of the improvement is to provide a simple and eflicient vaporizin kerosene oil burner without danger from are. use of the vaporized oil, and doing away with all liability to soot, smoke or odor; and the invention consists in the novel features and combinations hereinafter set forth and claimed. In the drawings, Figure l is a perspective view of the burner with the oil tank connected thereto. Fig. 2 is a lengthwise sectional view of the oil burner diametral of the U-shaped oil pipe showing the construction'and arrangement of the same. Fig. 3 is a crosswise sectional view at line 33 in Fig. 2 showing the construction of the burner. Fig. 4: is a perspective view of the movable support for the upper tube of the burner and shut-off for one of the burner openings.

Like characters of reference refer to corresponding parts in the several views.

The-numeral 10 designates the air chamber base upon which the U-shaped vaporizing pipe 11 of the burner is attached by means of the U-shaped staple 12 which binds the lower leg 13 of the U-shaped pipe or tubing 11 upon the spaced saddle shaped projections 11 on the top of the base 10.

The U-shaped tubular burner portion 11 has the legs 13 and 15 which are attached to the base 10 in the saddles 14, as stated, so as to place the leg 15 directly above and in line with the leg 13. The end of the leg 13 is capped at 16 and has the small gas or vapor openings 17, the two legs 13 and 15 being spaced sufliciently near one another easy placing of the same and its quick fitting Specification of Letters Patent.

Patented Apr. 15, 1919.

Application filed May a1, 1918. Serial No. 237,498.

to the upper leg 15 of the pipe. The lower end 21 is provided with an asbestos facing so that it may be placed over one of the openings 17 when it is desired to cut off one of said openings thereby serving the double purpose of a support or brace between th two legs 13 and 15 and also as a closure for the burner opening 17. It is apparent that the support 18 can be placed at any point desired between the two legs 13 and 15 as shown in Fig. 2 in which the sectioned support 18 is shown as a closure or shut of]? for one of the holes 17 and in dotted line over the other hole showing the manner in which its position may be changed, and in Fig. 1 the support 18 is shown between the two burner holes 17.

In order to assist in vaporizing the oil, a plurality of wire rods 22 are provided lengthwise within the tubular upper leg 15 so that the oil will be delayed by the heated wires 22, said wires retaining a larger amount of heat throughout the length of the leg 15 and hastening the vaporization. The vaporizing oil is mixed with air mainly from the air chamber 24 in the base 10, the hooded openings 23 being provided in the top of the base 10 on each side of the burner openings 17 thereby protecting said burner openings against draft and at the same time providing an air vent each side of said openings through which the air is drawn. An esbestos pad 25 is provided between the hooded openings 23 beneath the lower leg' 13 of the tubing 11 at each burner opening 17 to catch the over flow of oil particularly before vaporization is complete when first the oil is turned on for starting generation of the gas.

A cup shaped flat bottomed deflector or flame spreader 26 is provided with a central upwardly extending supporting bar 27 which has a hole therethrough so that said deflector or flame spreader 26 may he slipped onto the tube 11 so as to be slidably mounted or hung on the upper leg 15 and moved back and forth as desired. as shown in solid and dotted outline in Fig. 2; thus the deflector 26 may be placed directly over the burner openin 17 and a sufficient amount of intlainma le fluid placed therein to start the vaporization of the oil in the leg 15, after which said deflector 26 may be left in the same position to spread the flame from the opening 17 over a large surface of the tubular leg 15 or it may be slipped aside thereby allowing the flames to bear directly upon and around said leg 15 when vaporizing the oil.

a The tubular burner portion 11 is preferably made of about one-quarter to one-half inch tubing according to the uses desired and a reducing connection 28 is preferably provided at the end of the leg 15 to attach to a smaller size pipe 29 which connects to a supply tank 31, a valve 30 being provided in the pipe line 29. The tank 31 is placed at a sufficient elevation above the burner to give the desired pressure to the flow of the oil from the tank 31 through the heated wire filled tubular leg 15.

It is now apparent that the'difi'erent parts of this simple; oil burner may be quickly and easily assembled providing burner openings 17 through which the vaporized oil may be easily ignited, free access being given to said openings between the hooded air openings 23, the vaporization of the oil for generation of the gas being started by means of the flat bottom cup shaped defiectors or flame spreaders 26 in which a suflicient amount of inflammable fluid can be placed to start the generation of the vapor or gas which mixes with the air as it escapes from both" sides through the hooded openings 23 and mixes with t'lie oil vapor" to form the fuel gas. The inflammable fluid for the cups 26 may be either oil or denatured alcohol which should be allowed to overflow upon the asbestos pad 25 so that when lighted a double heat generator is provided to hasten theoil aporization. When the oil ,vapor is started generating, the oil may be turned on at the valve 30 from the tank 31 and lighted at the din'iinutive burner openings 17, the cups '26 acting as flame spreaders as hereinbefore described.

I claim as new 1. An oil burner comprising a base having substantially vertical spaced hooded airopenings through the top of the same, a U-shaped tubular pipe burner attached to the top of said base by the lower leg between said vertical hooded openings with the upper leg above and in line with said lower leg to generate gas, said lower leg having burner openings for gas between said spaced hooded openings to insure mixing air with the gas, and a movable support between said upper and lower legs of said Usshaped burner to hold them in alinement. 2. An oil burner comprising a base having a plurality of spaced oppositely facing hooded air openings through the top of said base, a U-shaped tubular pipe burner attached on the top of said base between said oppositely facing hooded air openings with one leg above the other to generate gas in the upper leg, diminutive burner openings for the gas in the lower leg of said U-shaped pipe one opening between each pair of said oppositely facing hooded air openings, a removable brace support between the legs of said U-shaped burner to hold the same in spaced alinementone above the other, and a suitably reduced pipe connection from said U-shaped burner to a source of oil supply.

3, An oil burner comprising a base hav-- ing spaced air openings through the top of the same, a U-shaped tubular pipe burner attached between said spaced air openings on said base with one leg above another, burner openings in the lower leg of said U-shaped pipe-between said air openings. cup-shaped flat bottom deflectors slidably mounted on said upper leg of said U-shaped burner to start vaporization of the oil. and

a movable support for the upper leg of said U-shaped burner to support the same,'said support having an asbestos faced portion to f'close said burner openingand shut oil the gas when desired- 1 4. An Oll burner comprising an air chamber base having spaced hooded air openings through the top of the same to said chamber, a U-shaped pipe burner attached in supporting saddles on the top of said base to hold said U-shaped burner pipe with one leg above the other, the lower leg of said U-shaped burner pipe having diminutive openings in the upper side thereof between said hooded air openings, cup-shaped defiectors slidably mounted on the upper leg of said U-shaped burner pipe to deflect the flame and start-vaporization of the oil, a

' supporting brace fitting between the legs of said U-shaped burner pipe having an asbestos faced lower end to shut off the gas from one of the burner openings when desired, and a diminished sized connection pipe to a source of oil supply. 1

In testimony whereof I have affixed my signature in the presence of two witnesses. 'EDlVIN L. ROBERTSON. Witnesses:

H. J. Voss, J. B. MoRENUs. 

